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{“questions”:{“ez82p”:{“id”:”ez82p”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary function of a gear in a mechanical system?\r\n”,”desc”:””,”hint”:””,”answers”:{“ctp1z”:{“id”:”ctp1z”,”image”:””,”imageId”:””,”title”:”a) To increase electrical energy\r\n”},”o864x”:{“id”:”o864x”,”image”:””,”imageId”:””,”title”:”b) To transfer motion and force\r\n”,”isCorrect”:”1″},”dblmd”:{“id”:”dblmd”,”image”:””,”imageId”:””,”title”:”c) To reduce friction between moving parts\r\n”},”71cd0″:{“id”:”71cd0″,”image”:””,”imageId”:””,”title”:”d) To control the temperature of a system\r\n”}}},”h7lnj”:{“id”:”h7lnj”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which type of gear is used to change the direction of rotation by 90 degrees?\r\n”,”desc”:””,”hint”:””,”answers”:{“bmohi”:{“id”:”bmohi”,”image”:””,”imageId”:””,”title”:”a) Helical gear\r\n”},”36yip”:{“id”:”36yip”,”image”:””,”imageId”:””,”title”:”b) Bevel gear\r\n”,”isCorrect”:”1″},”oh1kp”:{“id”:”oh1kp”,”image”:””,”imageId”:””,”title”:”c).

{“questions”:{“m9xhy”:{“id”:”m9xhy”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary purpose of fidget toys?\r\n”,”desc”:””,”hint”:””,”answers”:{“h6eiy”:{“id”:”h6eiy”,”image”:””,”imageId”:””,”title”:”A) To be used as a decoration\r\n”},”7eqhm”:{“id”:”7eqhm”,”image”:””,”imageId”:””,”title”:”B) To help with relaxation and focus\r\n”,”isCorrect”:”1″},”rufp2″:{“id”:”rufp2″,”image”:””,”imageId”:””,”title”:”C) To replace traditional toys\r\n”},”vjw0s”:{“id”:”vjw0s”,”image”:””,”imageId”:””,”title”:”D) To be used exclusively for children\r\n”}}},”1i4i3″:{“id”:”1i4i3″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which of the following is a popular type of fidget toy?\r\n”,”desc”:””,”hint”:””,”answers”:{“h6779”:{“id”:”h6779″,”image”:””,”imageId”:””,”title”:”A) Rubik’s Cube\r\n”,”isCorrect”:”1″},”em0rh”:{“id”:”em0rh”,”image”:””,”imageId”:””,”title”:”B) Board games\r\n”},”u5kb9″:{“id”:”u5kb9″,”image”:””,”imageId”:””,”title”:”C) Play-Doh\r\n”},”h144w”:{“id”:”h144w”,”image”:””,”imageId”:””,”title”:”D) Teddy bear\r\n”}}},”sj4c9″:{“id”:”sj4c9″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Fidget spinners were most popular in.

{“questions”:{“z2bif”:{“id”:”z2bif”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary principle behind the operation of an electromagnetic swing?\r\n”,”desc”:””,”hint”:””,”answers”:{“xms5i”:{“id”:”xms5i”,”image”:””,”imageId”:””,”title”:”a) Magnetism induces motion through a physical link\r\n”},”l4v0v”:{“id”:”l4v0v”,”image”:””,”imageId”:””,”title”:”b) Electric current interacts with a magnetic field to create movement\r\n”,”isCorrect”:”1″},”97izz”:{“id”:”97izz”,”image”:””,”imageId”:””,”title”:”c) Gravitational force powers the swing\r\n”},”qitt4″:{“id”:”qitt4″,”image”:””,”imageId”:””,”title”:”d) Mechanical force is converted into electrical energy\r\n”}}},”oy1tq”:{“id”:”oy1tq”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”In an electromagnetic swing, which of the following is essential to generate.

{“questions”:{“rzy79”:{“id”:”rzy79″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary component used to generate electricity in a wind turbine?\r\n”,”desc”:””,”hint”:””,”answers”:{“wa77p”:{“id”:”wa77p”,”image”:””,”imageId”:””,”title”:”a) Solar panel\r\n”},”6yga7″:{“id”:”6yga7″,”image”:””,”imageId”:””,”title”:”b) Generator\r\n”,”isCorrect”:”1″},”n8gi2″:{“id”:”n8gi2″,”image”:””,”imageId”:””,”title”:”c) Battery\r\n”},”qjqoy”:{“id”:”qjqoy”,”image”:””,”imageId”:””,”title”:”d) Inverter\r\n”}}},”am0gx”:{“id”:”am0gx”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the typical range of wind speeds required for efficient operation of a wind turbine?\r\n”,”desc”:””,”hint”:””,”answers”:{“k2ugy”:{“id”:”k2ugy”,”image”:””,”imageId”:””,”title”:”a) 1-5 mph\r\n”},”x4jcf”:{“id”:”x4jcf”,”image”:””,”imageId”:””,”title”:”b) 10-20 mph\r\n”,”isCorrect”:”1″},”0z6lt”:{“id”:”0z6lt”,”image”:””,”imageId”:””,”title”:”c) 25-30 mph\r\n”},”gxud1″:{“id”:”gxud1″,”image”:””,”imageId”:””,”title”:”d) 35-40 mph\r\n”}}},”p3qya”:{“id”:”p3qya”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the name of the part of the wind turbine that.

{“questions”:{“13na8”:{“id”:”13na8″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary function of a drill?\r\n”,”desc”:””,”hint”:””,”answers”:{“y44oh”:{“id”:”y44oh”,”image”:””,”imageId”:””,”title”:”A) To cut wood\r\n”},”mgumf”:{“id”:”mgumf”,”image”:””,”imageId”:””,”title”:”B) To fasten screws\r\n”},”fe0eo”:{“id”:”fe0eo”,”image”:””,”imageId”:””,”title”:”C) To make holes in various materials\r\n”,”isCorrect”:”1″},”75iwr”:{“id”:”75iwr”,”image”:””,”imageId”:””,”title”:”D) To polish surfaces\r\n”}}},”v6g8k”:{“id”:”v6g8k”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which of the following materials is commonly used for making drill bits?\r\n”,”desc”:””,”hint”:””,”answers”:{“zs1a9”:{“id”:”zs1a9″,”image”:””,”imageId”:””,”title”:”A) Plastic\r\n”},”5ls9v”:{“id”:”5ls9v”,”image”:””,”imageId”:””,”title”:”B) Steel\r\n”,”isCorrect”:”1″},”9oin7″:{“id”:”9oin7″,”image”:””,”imageId”:””,”title”:”C) Wood\r\n”},”0mxyk”:{“id”:”0mxyk”,”image”:””,”imageId”:””,”title”:”D) Rubber\r\n”}}},”dvw9e”:{“id”:”dvw9e”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which type of drill is best for drilling through concrete?\r\n”,”desc”:””,”hint”:””,”answers”:{“brbf1”:{“id”:”brbf1″,”image”:””,”imageId”:””,”title”:”A) Cordless drill\r\n”},”8r1go”:{“id”:”8r1go”,”image”:””,”imageId”:””,”title”:”B) Hammer drill\r\n”,”isCorrect”:”1″},”7ha4i”:{“id”:”7ha4i”,”image”:””,”imageId”:””,”title”:”C) Electric.

{“questions”:{“7vng6”:{“id”:”7vng6″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What does \”digital walkie-talkie\” refer to?”,”desc”:””,”hint”:””,”answers”:{“6h489”:{“id”:”6h489″,”image”:””,”imageId”:””,”title”:”A) A walkie-talkie that uses analog signals”},”qypsd”:{“id”:”qypsd”,”image”:””,”imageId”:””,”title”:”B) A walkie-talkie that uses digital encryption”,”isCorrect”:”1″},”yj3eo”:{“id”:”yj3eo”,”image”:””,”imageId”:””,”title”:”C) A walkie-talkie that has no range limits”},”yh85v”:{“id”:”yh85v”,”image”:””,”imageId”:””,”title”:”D) A walkie-talkie with a touch screen”}}},”ojec2″:{“id”:”ojec2″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is one key advantage of digital walkie-talkies over analog ones?”,”desc”:””,”hint”:””,”answers”:{“2e66w”:{“id”:”2e66w”,”image”:””,”imageId”:””,”title”:”A) They have a longer battery life”},”75ipk”:{“id”:”75ipk”,”image”:””,”imageId”:””,”title”:”B) They are cheaper to produce”},”1cvlj”:{“id”:”1cvlj”,”image”:””,”imageId”:””,”title”:”C).

{“questions”:{“ytx29”:{“id”:”ytx29″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the primary function of a digital metal detector?”,”desc”:””,”hint”:””,”answers”:{“yfiuo”:{“id”:”yfiuo”,”image”:””,”imageId”:””,”title”:”A) To find treasure under water”},”0xpo0″:{“id”:”0xpo0″,”image”:””,”imageId”:””,”title”:”B) To detect metallic objects buried beneath the ground”,”isCorrect”:”1″},”h6zas”:{“id”:”h6zas”,”image”:””,”imageId”:””,”title”:”C) To scan objects for radioactive material”},”x1da0″:{“id”:”x1da0″,”image”:””,”imageId”:””,”title”:”D) To measure the size of objects underground”}}},”njbv1″:{“id”:”njbv1″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”Which technology do most modern digital metal detectors use for detection?”,”desc”:””,”hint”:””,”answers”:{“kak0z”:{“id”:”kak0z”,”image”:””,”imageId”:””,”title”:”A) Radar waves”},”4eh87″:{“id”:”4eh87″,”image”:””,”imageId”:””,”title”:”B) Magnetic fields”},”zxsrs”:{“id”:”zxsrs”,”image”:””,”imageId”:””,”title”:”C) Electromagnetic induction”,”isCorrect”:”1″},”ef1x2″:{“id”:”ef1x2″,”image”:””,”imageId”:””,”title”:”D).